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Subject: Gas boiling on naa

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Wayne N ind.    Posted 05-07-2020 at 01:39:31 [URL] [DELETE]        [Reply] [Email]  
  • Gas boiling on naa
  • Gas boiling in the sediment bulb on one of the Naa’s . Could it be the radiator is not cooling enough? Doesn’t seem to run hot. I think I had another one do this. Changed the line ,maybe the sediment screen problem solved. Just lucky? This one runs the cuts out like not getting fuel ,then dies. Like a coil can let it cool as soon it boils again pretty quick. Cuts out again.

    Tim Daley(MI)    Posted 05-08-2020 at 08:40:36 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Gas boiling on naa
  • If sediment bulb is boiling that means the gas tank most likely is too so as stated check heat shield. I don't think the NAA gas tank has a vent hole but I could be wrong. What does your temperature gauge read when warmed up? Is it overheating? You can easily test the radiator and thermostat and replace if bad. "Maybe, could of, would of, should of are just guesses so avoid those opinions. Get the actual facts by problem solving. The issue of gas boiling due to ethanol has been discussed to infinity and beyond. You can do your own archive search to read previous comments, actual factual data, and opinions to make up your own mind. Have you performed the fuel flow test? Your OEM Owner's Manual and I&T FO-19 Manual are essential troubleshooting tools.

    Tim Daley(MI)

    Bruce( VA)    Posted 05-07-2020 at 06:17:15 [URL] [DELETE]        [Reply] [Email]  
  • Re: Gas boiling on naa
  • What Dean said.

    Meanwhile, had a pint of diesel or kerosene to a full tank of gas.

    Yea, it reduces the octane level, but you won't notice it. But it does raise the boiling point of the fuel.

    Dean    Posted 05-07-2020 at 06:06:10 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Gas boiling on naa
  • Verify that both muffler heat shield and radiator shroud are in place.

    Also verify ignition timing and proper operation of centrifugal spark advance mechanism.

    Avoid gasoline with ethanol if at all possible.


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